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Title / Install earthing systems for multiple earthed neutral installations
Level / 3 / Credits / 3
Purpose / This unit standard is for people wishing to qualify in the electrical industryand covers the installation of multiple earthed neutral (MEN) earthing systems.
People credited with this unit standard are able to:
–plan earthing systems for MEN installations;
–install earthing systems for MEN installations; and
–test MEN earthing systems and document installation results.
Classification / Electrical Engineering > Electrical Installation and Maintenance
Available grade / Achieved
Explanatory notes
1This unit standard has been developed for learning and assessment on-job.
2This unit standard and unit standards 1204, 29473, and 29477 togethermeet the assessment requirements of ERAC CEPC 16.
This unit standard and unit standards 1204 and 29477 togethermeet the assessment requirements of ERAC CEPC 17.
This unit standard and unit standards 29419, 29441, and 29469 together meet the assessment requirements of ERAC CEPC 21.
This unit standard and unit standards 5931, 29419, 29430, and 29440 together meet the assessment requirements of ERAC CEPC 38.
3Definitions
CEPC – Critical Essential Performance Capabilities.
ERAC – Electrical Regulatory Authorities Council.
EWRB – Electrical Workers Registration Board.
Industry practice – those practices that competent practitioners within the industry recognise as current industry best practice.
Safe and sound practice – as it relates to the installation of electrical equipment is defined in AS/NZS 3000:2007, Electrical Installations (known as the Australian/New Zealand Wiring Rules).
5Range
aCandidates may refer to current legislation and Standards during assessment.
bDemonstration of safe working practices and installation in accordance with safe and sound practice are essential components of assessment of this unit standard.
cAll activities and evidence presented for all outcomes and evidence requirements in this unit standard must be in accordance with:
ilegislation;
iipolicies and procedures;
iiiethical codes;
ivStandards – may include but are not limited to those listed in Schedule 2 of the Electricity (Safety) Regulations 2010;
vapplicable site, enterprise, and industry practice; and,
viwhere appropriate, manufacturers’ instructions, specifications, and data sheets.
Outcomes and evidence requirements
Outcome 1
Plan earthing systems for MEN installations.
Evidence requirements
1.1Plan earth electrode system.
Rangesize, type, position.
1.2Plan earthing cable and route.
1.3Identify all metal work requiring bonding.
Outcome 2
Install earthing systems for MEN installations.
Evidence requirements
2.1Install earth electrode, main earth conductor, and other components.
2.2Bond metalwork.
Rangebonding may include but is not limited toconnections between – water pipes, gas pipes, waste pipes, showers, sinks, switchboard enclosures.
Evidence of two is required.
2.3Connect earthing and bonding.
Rangeconnections – clean, secure, protected against corrosion, protected against mechanical damage, readily accessible, labelled as required.
Outcome 3
Test MEN earthing systems and document installation results.
Evidence requirements
3.1Test earthing systems for compliance with current regulations and standards and ensure that they are safe to connect.
3.2Document test results and complete a certificate of compliance in accordance with company requirements.
Planned review date / 31 December 2019Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for AssessmentRegistration / 1 / 22 April 1994 / 31 December 2013
Review / 2 / 23 April 1996 / 31 December 2013
Review / 3 / 28 June 1999 / 31 December 2013
Revision / 4 / 3 April 2001 / 31 December 2013
Review / 5 / 26 May 2005 / 31 December 2021
Rollover and Revision / 6 / 15 March 2012 / 31 December 2021
Revision / 7 / 15 January 2014 / 31 December 2021
Review / 8 / 21 July 2016 / N/A
Revision / 9 / 16 March 2017 / N/A
Consent and Moderation Requirements (CMR) reference / 0003
This CMR can be accessed at
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The CMR also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements.
Comments on this unit standard
Please contact The Skills Organisationat you wish to suggest changes to the content of this unit standard.
The Skills OrganisationSSB Code 100401 / New Zealand Qualifications Authority 2018